Dust-collector.



0. M. MORSE, DEOD. s. G. MORSE, s'rEoIAL ADMINIBTKATRI-X. DUSTCOLLECTOR, APPLICATION FILED JUNE 9. 1909.

Patnted Aug. 30, 1910.

2 SHEETS-SHEET Z.

series.

(PRVELLE I l. MORSE, 033 JACKSON, MIGHIGAN; SARAH G. MORSE SPECIALADMINIS- TEATRIX F SAID ORVILLE 1V1. IIIORSE, DECEASED.

DUST-COLLECTOR.

To all whom it may concern:

Be it known that I, ORVILLE M. lvlonsn, a citizen of the United States,residing at Jackson, in the county of Jackson and State of Michigan,have invented certain new and useful Lnprotements in Dust-Collectors, ofwhich the following is a specification.

My invention relates to improvements in dust collectors, and has for itsgeneral ob-. ject to provide a collector which will elliciently gatheror separate fine dust, such as that which commonly escapes or leaks fromcollectors of the cyclone type. I have found that, such fine dust of anexceedingly light, impalpalole character, may be collected by blowingthe air laden therewith into a hood or screen of coarse wire mesh, andone of the salient objects of my invention is to provide a cons-.ructionof a simple,v economical, etlicicnt cha 'acter to facilitate the use andcleaning of such a screening agent.

In the drawings, wherein l have illustrated an embodiment of myinvention; Figure 1 is a diagrammatic outline showing the association ofa screening collector em bodying my invention with a cyclone dustcollector. Fig. 2 is a central vertical sec tion through a dustcollector embodying my invention. Fig. 3 is an enlarged section of anair delivering and screening element. Fig. i is a enlarged detail of ascreen ar range-merit which I have found convenient; Fig. 5 is an endview of Fig. 2 from the left with parts broken away. Fig. (3 is avertical section on line. (3-6 of Fig. 2. Fig. 7' is a plan View withparts of the collector broken away. Fig. 8 a sectional detail on line 88of Fig. 7.

In the construction sho 'n, 10 indicates in general a casing, preferablyof rectangular form opening downward into a hopper 11 communicating withthe delivery spout 12, said casing having at one end thereof aninletspout l3 projecting slightly therein below the top l i-{and whichmay, in general, be led from the source of dust supply, such as theoutlet of a dust collector l) of the centrifugal type.

Within the casing 10 I provide a screening agency, preferably in theform of a screening cylinder, gei-rerally indicated at 15 and comprisingtwo heads 16 and 17, adjacent the opposite ends of the casing 10, thehead 16 being apertured to surround the inwardly Specification ofLetters Eatent. Patented Aug. 39, 1910 Application filed June 9,

1909. Serial No. 501,052.

{ projecting end of the inlet pipe 13 and the head 17 carrying a shaftextension 18, which passes through the opposite end wall. of the casinglt),-and bears a pulley It) or other means for communicating motionthereto. The heads 16 and 17 may be spaced apartby longitudinal bracerods 20, which receive and afford support to the wire screening 21,which is preferably relatively coarse wire screening arranged inmultiple ply, three layers, as shown in Fig. 4-, being practicallysuited for the practice of my invent1on, although more or less layersmay be employed. Cent-rally of its length the screening cylinder 15 isdivided by a solid-partition 22,- into two end-abutting chambers 23 and2 and the upper portion of the casing is preferably also divided in thesame vertical line by a partition 25 extending down below the cylinderand apertured as at 26 for the passage therethrough of the screeningcylinder. Within the chamber 23 1 pro vide a distributing structureconsisting of a series of walls 2'? inclosing an inner rectangular aircompartment 28,, said walls 27 extending longitudinally the full lengthof the chamber 23 from the head 16 to the parvide longitudinal slots oroutlets 29 opening toward the surrounding screen cylinder in a directionpreferably at right angles to radial, or as I will term it in atangential direction, each wall 27 to this endtcrininatiug in an angularlip 27 disposed to direct the air passing thereby in theappropriatedirection.

The compartment 31 between the partition 25 and the inlet end of thecasing 10; which I will designate the primary compartcompartment 32,which I will term the secondary compartment, has a top outlet opening 33therefrom, while the secondary com partmcnt has an end outlet opening34; near the top of the casing. Division walls 35 are preferablyprovided in the primary compartment 31, to segregate the dust dischargearea below the axis of the'cylinder 15 from the outlet area thereabove,such division walls extending the full length of the primarycompartment, and from the side walls thereof approximately to theexterior of the screen cylinder. The head 17 of the screen chamber 24 ispreferably spaced apart somewhat from the adjacent end wall of thetit-ion 22, and being'so dispensed as to promeut as distinguished fromthe opposite therein at suitable intervals.

casing 10, and has apertures 36 provided Division walls 37, 37 may beprovided in the same relation to the cylinder chamber 24 as are thewalls 35 with respect to the oppositechamber 33, and in addition thespace between the lower half of the periphery of the head 17 and the endwall, may be substantially closed by a structure 38 so that throughoutthe length of the casing the only communication be tween the upper oroutlet portion thereof and the lower or dust delivery portion thereof isthrough the screened cylinder chambers.

Means are preferably provided for cleansing the cylinder chamber 24 andfor this purpose I have found effective a body of movable particles,such as a gravel mass 40 within the cylinder chamber, and the heaters41, consisting of a series of short chains 42 attached to a longitudinalshaft 43 extendin through the casing and driven by a pn ley 44. Withinthe opposite cylinder chamber I may employ, if desired, a scourthewire'mesh the dust settles upon the cylinder, probably owing to the eddyaction in the current occasioned by passage through the wire mesh. Mostof the outgoin air takes the path of least resistance throug the upperhalf of. the cylinder and escapes through the outlet 33 in a cleansedcondition, but some of it escapes downward through the lower half of thecylinder into the'dust delivery portion thereof to pass under thepartition wall 25 toward the outlet 34 at the opposite end of themachine. The dust collected bythe wire fabric of theinitial chamber isconstantly removed therefrom by the conjoint action of the gravel mass40 and the beater chains 42, such dust dropping into the dust dischargearea of" the machine,

through which the air in flow below the partition walls 25 must pass.Therefore, it IS advantageous to have the secondary screen-.

ing chamber in the path of theoutgoing air following the direction ofdust discharge to prevent escape of dust with such air. In the transitof such escaping air through the cylinder 24 and the end openings 36,such slight amount of dust as may have been carried up by the air isremoved therefrom. As a matter of fact, however, very little dustaccumulates upon the secondar end of the cylinder, for the great bulk othe incoming air having escaped upwardly from theprimary cylinderchamber there is no blast or decided draft through the dust dischargearea, but only a very gentle air movement.

l/Vhile I have herein described in some detail a particular embodimentof my inven- 1. In a dust collector, the combination of a cylinderproviding a cylindrical wall of coarse mesh fabric, achamber within saidcylinder having outlets disposed to deliver air tangentially to'theinner surfaces of the cylinder, and an inlet to the inner chamber. 2. Ina dust collector, the combination of a casing, a rotatable cylinderwithin said casing, having an inlet in an end thereof, said cylinderproviding a cylindrical wall of relatively coarse mesh fabric, meanswithin the casing coacting with the cylinder, to divide the areaexterior to the cylinder into upper and lower compartments, there beingan air outlet from the upper or air-discharge compartment, a dust outletopening to the lower compartment; and means for cleaning the bottomportion of the cylinder, which is adjacent the lower compartment 3. In adust collector, the combination of a casing, a rotatable cylinder withinsaid casing providing a cylindrical wall of relatively coarse fabric,registering partitions in the cylinder and casing dividing the cylinderand casing into two compartments separated longitudinally of thecylinder, and

means within the casing dividin the'portion of the casing above the cylnder axis from that below the cylinder axis, said longitudinallyseparated compartments of the casing each providing an air outletopening,-

above the cylinder axis and the lower portion of the casing providing adust outlet opening, an air inlet to the interior of one longitudinalcompartment of the cylinder,

andmeans for cleaning a portion of the cylinder below the axis thereof.

. 4. In a dust collector, a casing, 2. cy-

lindrical structure therein, comprising 2. cy-

lindrical wall, of relatively coarse fabric, said cylinder having an airinlet opening to its interior, means within the casing establishing twopaths of air delivery from said cylinder to the atmosphere in differentdirections, means .for removing dust from that portion of the cylindertoward one only of said air paths, and a secondary screening agent inthe last said air path.

5. In a dust collector, the combination of a casing, u cylindricalstructure mounted for rotation within the casing, having-a cylindricalwall of relatively coarse fabric, registering partitions in the cylinderand casing the cylinder for directing air tangentially to thesurrounding fabric wall, means .within the casing dividing the casinginto upper and lower compartments throughout its length on substantiallythe axis of the cylinder, the compartment below the axis of the cylinderproviding a dust outlet, and each compartment above the cylinder providing an air outlet, and means for cleansing that portion of thecylinder nearest the inlet at a level below the axis ofthe cylinder,comprisinga rolling body within the cylinder and means forjarring thefabric of the cylinder.

In testimony whereof I hereunto set my hand in the presence of twowitnesses. ORVILLE M. MORSE.

In the presence of JOHN 'L. BENTLEY, WILIJIAMB. KNICKERBOCKER.

